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Article

Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy

1
Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106 Warsaw, Poland
2
Department of Mechanical and Manufacturing Engineering, University of Cyprus, 20537 Nicosia, Cyprus
3
Faculty of Advanced Technologies and Chemistry, Military University of Technology, 00-908 Warsaw, Poland
4
Department of Materials and Machinery Technology, University of Warmia and Mazury, Oczapowskiego 11 St., 10-719 Olsztyn, Poland
*
Author to whom correspondence should be addressed.
Materials 2020, 13(17), 3863; https://doi.org/10.3390/ma13173863
Received: 20 July 2020 / Revised: 28 August 2020 / Accepted: 31 August 2020 / Published: 1 September 2020
In this paper, aluminide coatings of various thicknesses and microstructural uniformity obtained using chemical vapor deposition (CVD) were studied in detail. The optimized CVD process parameters of 1040 °C for 12 h in a protective hydrogen atmosphere enabled the production of high density and porosity-free aluminide coatings. These coatings were characterized by beneficial mechanical features including thermal stability, wear resistance and good adhesion strength to MAR 247 nickel superalloy substrate. The microstructure of the coating was characterized through scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analysis. Mechanical properties and wear resistance of aluminide coatings were examined using microhardness, scratch test and standardized wear tests, respectively. Intermetallic phases from the Ni-Al system at specific thicknesses (20–30 µm), and the chemical and phase composition were successfully evaluated at optimized CVD process parameters. The optimization of the CVD process was verified to offer high performance coating properties including improved heat, adhesion and abrasion resistance. View Full-Text
Keywords: chemical vapor deposition; nickel alloys; coatings; X-ray analysis chemical vapor deposition; nickel alloys; coatings; X-ray analysis
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MDPI and ACS Style

Kukla, D.; Kopec, M.; Kowalewski, Z.L.; Politis, D.J.; Jóźwiak, S.; Senderowski, C. Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy. Materials 2020, 13, 3863. https://doi.org/10.3390/ma13173863

AMA Style

Kukla D, Kopec M, Kowalewski ZL, Politis DJ, Jóźwiak S, Senderowski C. Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy. Materials. 2020; 13(17):3863. https://doi.org/10.3390/ma13173863

Chicago/Turabian Style

Kukla, Dominik; Kopec, Mateusz; Kowalewski, Zbigniew L.; Politis, Denis J.; Jóźwiak, Stanisław; Senderowski, Cezary. 2020. "Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy" Materials 13, no. 17: 3863. https://doi.org/10.3390/ma13173863

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